Railroad-car construction.



PatentedSept. 21, 1915.

.fa/nj' 'CEN/zar BY ATTORNEY J. F. OCONNOR.

RAILROAD CAR CONSTRUCTION.

APPLICATION FILED OCT. 9. 1914.

WITNESSES:

JOHN F. OCONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO WILLIA'II I-I.MINER, OF CHAZY, `NE`EV YORK.

RAILROAD-CAR CONSTRUCTION.

Application Viledctolcver 9, 1914.

To all whom it may concern.'

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Railroad-CarConstruction, of which the following is a full, clear, concise, andexact description, reference being had to ythe accompanying drawings,forming part of this specification.

My invention relates to improvements in railroad car construction andmore` particularly to a device for limiting the swing of a car body uponthe car trucks.

The object of my invention is to provide a device for resisting theswing.r of the car body in reference to the running gear .of the car.

In the drawing form-ing a part of this specification, Figure l Yis an.elevation of a truck and body bolster of a railroad car, illustrating`adjacent parts and disclosing the center pin device embodying vmyinvention in position. Fig. 2 is an enlarged detail taken in section online 2 2 of Fig. 1. Fig. 3 is a horizontal section takenr on line 3-3 ofFigi. Fig. fl is a perspective view of the king pin.

Referring to the drawings, Vthe numeral 5 indicates a body bolster withthe longitudinal sills 6 6 of the car under-frame resting thereon. Thetruck bolster 7 and spring plank 8 have mounted between them the springs9 9. Side bearings .1Q-1'0- arre interposed between the truck 'bolsterand the body bolster. The upper and lower members l1 and l@ thereofrespectively, in preferable arrangement, have :more than the usualclearance between them. The .upper center plate 13 is of largerdimensions than the ,usual type, having the central bearing portionllland the transversely extended flanges 15-l5 suitably secured to thebody bolster, preferably by the bolts 16-16, thus materially reinforcingthe bolster along its central portion. The lower bearing plate 40 issuitably secured to the truck bolster, preferably by the rivets Zll--lLThe king bolt 17, preferably circular in cross section,

extends downwardly from the body bolster.

center plate and is preferably integral therewith, the same projectingthrough the alined openings 18-18 in the truck bolster. The spring plank8 is provided with oppositely Specification of Let-ters'Patent.

Patented. Spt. 21, 1915.

serial No. 365,811. i

arranged brackets 20-20, suitably secured to the flanges 21-21 thereofby suitable means, preferably the rivets 9.2-9.2, the said bracketsbeing provided with slots 23-23 to receive the ends of preferably flatsprings 2li-24, which pass through the horizontal openings 25-25 in thelongitudinally movable sleeve 26. The brackets and springs hold thesleeve 26 in position in its relation to the spring plank, the saidsleeve 26 being provided with a vertical opening 27 in which there isreceived, preferably loosely, the downwardly extended king bolt 17. rlheslots 25 in the sleeve 26 preferably are outwardly flared at their endsto permit the suitable flexing ofthe springs on movement of the sleeve26. In preferable construction, the pin 17 is provided below the truckbolster with an annular groove 28 into which is clamped, or otherwisesuitably secured, a collar 29 to prevent the withdrawal of the pin fromthe truck bolster in the case of accidents and thus prevent theseparation of the car body from the trucks l In ordinary constructions,where the side bearings are employed to resist the swaying movement ofthe car body, the friction occurs between the side bearing members ofthe body and truck bolsters and thus increases the resistance to theswiveling movement of the truck both when striking a curve and whenleaving a curve. As will be apparent, this frictional resistance to theswivel movement is applied at a considerable distance from the center ofthe king pin, in ordinary practice about 80. This gives a long arm7 tothe force resisting the swiveling movement and causes increased wear ofthe flanges on the wheels of the truck. Nith my arrangement, I do notdepend upon the side bearing members to resist the swaying movement ofthe car body except under abnormal conditions but rely upon the king pinand its engagement with the spring plank. That is, tendency of the carbody and its bolster to sway is resisted by the king pin, the lower endof which is prevented from lateral or sidewise movement by its operativeengagement with the spring plank. While substantially the same amount offriction is generated whenever radiation occurs between the truck andthe car body, in my arrangement as in the usual construction, yet itwill be apparent that this friction is applied on a much shorter varm(approximately 2) and will thus have a much less effect in preventingthe swiveling movement.

I claim l. ln a railroad car, the combination with a truck bolster, abody bolsterl and a spring plank, oi a king pin secured to the bodybolster passing through the truck bolster and engaging the spring plank,said king pin swivellyconnecting the truck and body bolsters.

'2. ln a railroad car, the combination with a bodyv bolster, a truckbolster and spring plank ot an upper center bearing secured to the bodybolster, the said center bearing having a downwardly projecting memberpassing through the truck bolster, said member being yieldingly heldagainstl horizontal movement by the spring plank.L

3. In a car, the combination with body and truck bolsters and springplank, of a king pin 'extending from the body bolster through arelatively enlarged hole in the Y truck bolster and having its lower endoperatively swivelly connected with the spring plank.

l. ln a railroadV car, the combination With the bolsters and springplank, of an upper bolster bearing plate and a sleeve, the upper bolsterbearing plate having a downward projection passing through the truckbolster and looseiyengaging the sleeve.

5. In a railroad car, the combination'with the bolsters and springplank, of an upper bolster bearing plate and a sleeve, the upper bolsterbearing plate having a downward projection passing through the truckbolster and loosely engaging the sleeve, the sleeve being looselymounted on the spring plank.

Y 6.- ln a car, the combination with a body bolster, a truck bolster,center bearing plates secured to said bolsters, and a spring plank belowsaid bolsters, of a king pin extending from the body bolster looselythrough openings in the truck bolster and having its lower end inoperative engagement with thevspring plank, the latter limitingV thesidewise movement of the lower end ofsaid king pin and thereby theswaying of the car body.

7. In a railroad car, the combination with the body and truck bolstersand vspring plank, of a body bolstericenter plate, a sleeve and springsthe said center plate having a downward projection loosely engaging thesleeve, the springs engaging said sleeve to the spring plank.

S. In a railroad car, the combination with bolsters and spring plank, ofa body bolster center plate, a sleeve, springs and brackets, the bodybolster center plate having a down wardly projecting member Vengagingthesleeve, the brackets being secured to the spring plank, the springsbeing held in posin tion by said lbrackets and engaging the sleeve. Y

9. In a railroad car, the combination with bolsters and spring plank, ofa center plate, a sleeve and springs, the center plate having adownwardly projecting member engaging the sleeve, the springs passingthrough the sleeve and engaging said sleeve to the spring plank. Y

l0. In a railroad car, the'combinationw-ith bolsters and springplank,-of a center plate, a sleeve and springs, the center plate havinga downwardly projectingfmember engaging the sleeve, the springs beingmounted at their ends in the'sprng plank, .thel sleevebeing positionedon said springs.

11V. ln a car, the combination with a body bolster, truck bolster,center bearing plates interposedv between said bolsters', and springplank, of a king pin formed integrally with the center bearing plateattached to the body bolster, said king pin extending loosely throughthe truck bolster, a sleeve mounted on said spring plank and yieldablelaterally thereof, the lower end of said king pin being swiveled in saidsleeve. f'

. Jona r'. ocoanmi.

Witnesses:

CARRIE (l.v RANZ,

LUorLLn HIGGINS.

Copies of this `patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. C. l 'I

